| //@ run-pass | |
| #![allow(non_upper_case_globals)] | |
| #![allow(overflowing_literals)] | |
| // Testing shifts for various combinations of integers | |
| // Issue #1570 | |
| pub fn main() { | |
| test_misc(); | |
| test_expr(); | |
| test_const(); | |
| } | |
| fn test_misc() { | |
| assert_eq!(1 << 1 << 1 << 1 << 1 << 1, 32); | |
| } | |
| fn test_expr() { | |
| let v10 = 10 as usize; | |
| let v4 = 4 as u8; | |
| let v2 = 2 as u8; | |
| assert_eq!(v10 >> v2 as usize, v2 as usize); | |
| assert_eq!(v10 << v4 as usize, 160 as usize); | |
| let v10 = 10 as u8; | |
| let v4 = 4 as usize; | |
| let v2 = 2 as usize; | |
| assert_eq!(v10 >> v2 as usize, v2 as u8); | |
| assert_eq!(v10 << v4 as usize, 160 as u8); | |
| let v10 = 10 as isize; | |
| let v4 = 4 as i8; | |
| let v2 = 2 as i8; | |
| assert_eq!(v10 >> v2 as usize, v2 as isize); | |
| assert_eq!(v10 << v4 as usize, 160 as isize); | |
| let v10 = 10 as i8; | |
| let v4 = 4 as isize; | |
| let v2 = 2 as isize; | |
| assert_eq!(v10 >> v2 as usize, v2 as i8); | |
| assert_eq!(v10 << v4 as usize, 160 as i8); | |
| let v10 = 10 as usize; | |
| let v4 = 4 as isize; | |
| let v2 = 2 as isize; | |
| assert_eq!(v10 >> v2 as usize, v2 as usize); | |
| assert_eq!(v10 << v4 as usize, 160 as usize); | |
| } | |
| fn test_const() { | |
| static r1_1: usize = 10_usize >> 2_usize; | |
| static r2_1: usize = 10_usize << 4_usize; | |
| assert_eq!(r1_1, 2 as usize); | |
| assert_eq!(r2_1, 160 as usize); | |
| static r1_2: u8 = 10u8 >> 2_usize; | |
| static r2_2: u8 = 10u8 << 4_usize; | |
| assert_eq!(r1_2, 2 as u8); | |
| assert_eq!(r2_2, 160 as u8); | |
| static r1_3: isize = 10 >> 2_usize; | |
| static r2_3: isize = 10 << 4_usize; | |
| assert_eq!(r1_3, 2 as isize); | |
| assert_eq!(r2_3, 160 as isize); | |
| static r1_4: i8 = 10i8 >> 2_usize; | |
| static r2_4: i8 = 10i8 << 4_usize; | |
| assert_eq!(r1_4, 2 as i8); | |
| assert_eq!(r2_4, 160 as i8); | |
| static r1_5: usize = 10_usize >> 2_usize; | |
| static r2_5: usize = 10_usize << 4_usize; | |
| assert_eq!(r1_5, 2 as usize); | |
| assert_eq!(r2_5, 160 as usize); | |
| } |